[Samba] Samba firts DC fail over

Jeff Sadowski jeff.sadowski at gmail.com
Fri Feb 24 23:07:08 UTC 2017


Just a thought if the client machines are still getting a listing in the
DNS for the failed machines wouldn't this be a problem? How would the
programs know not to use the failed server? Is there a way to temporarily
move the failed machines out of dns listings?

On Fri, Feb 24, 2017 at 8:52 AM, Vinicius Bones Silva via samba <
samba at lists.samba.org> wrote:

> No, the question is about your client machine. Who are the DNS servers
> configured on it? Does it have a second dns server configured? If it uses
> your first DC as DNS, and you take that DC offline, who the client machine
> will query for domain info?
>
> As for the issue below it is normal. Every DC registers an "A" record for
> your domain name. When you use dig, it will retrieve all "A" entries for
> "domain_name", but when you ping it, one of the A records will be selected
> at random and used to be the target for ping. You can do a "ipconfig
> /flushdns" to force the client machine to try and find a different address
> for ping.
>
> Regards,
> Vinicius.
>
> Em 24/02/2017 11:15, Keshia lesly diana Etsiké malam escreveu:
>
>> Normally all Dcs play the role of DNS. When I do a "dig domain_name" I
>> have all the DCs in the domain, but when I ping the domain name there is
>> only one DC that responds. And I do not know how to change that. When I
>> shut down the DC having created the domain, the secondary Dc are able
>> resolve the domain naming.
>>
>>
>> Le Vendredi 24 février 2017 14h47, Vinicius Bones Silva via samba <
>> samba at lists.samba.org> a écrit :
>>
>>
>> who are the DNS servers used by the client machine?
>>
>> Em 24/02/2017 05:42, Keshia lesly diana Etsiké malam via samba escreveu:
>> > Hello,
>> > I am currently testing for Samba4. The creation of the domain and the
>> secondary Dc implementation works well. But by performing tests for a fail
>> over situation I realized that when the DC that created the domain is in
>> fail over the linux client machine can no longer retrieve the list of users
>> from the domain. I would like to know if a person has already faced this
>> situation and if so how he solved it.
>> >
>> >  Thank you.
>>
>> --
>>
>>
>> Vinicius Silva
>> SOC
>>
>>
>> BRA: + 55 51 2117.1000 | 55 11 5521.2021
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>> skype: vinicius.bones.silva
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>     Smiley face
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> --
>
>
> Vinicius Silva
> SOC
>
>
> BRA: + 55 51 2117.1000 | 55 11 5521.2021
> USA: + 1 888 259.5801
> vbs at e-trust.com.br
> skype: vinicius.bones.silva
>
>
>
>
>
>
>
>
>
>         Smiley face
>
> www.e-trust.com.br <http://www.e-trust.com.br/>
>
>
> Esta mensagem pode conter informações confidenciais ou privilegiadas. Se
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